patch 8.2.0095: cannot specify exit code for :cquit

Problem:    Cannot specify exit code for :cquit.
Solution:   Add optional argument. (Thinca, Yegappan Lakshmanan, closes #5442)
diff --git a/src/ex_cmds.h b/src/ex_cmds.h
index 14b43bd..928b110 100644
--- a/src/ex_cmds.h
+++ b/src/ex_cmds.h
@@ -407,7 +407,7 @@
 	EX_RANGE|EX_COUNT|EX_TRLBAR|EX_BANG,
 	ADDR_OTHER),
 EXCMD(CMD_cquit,	"cquit",	ex_cquit,
-	EX_TRLBAR|EX_BANG,
+	EX_RANGE|EX_COUNT|EX_ZEROR|EX_TRLBAR|EX_BANG,
 	ADDR_NONE),
 EXCMD(CMD_crewind,	"crewind",	ex_cc,
 	EX_RANGE|EX_COUNT|EX_TRLBAR|EX_BANG,